sauvage



W. H. SAUVAGE.

RAILWAY HAND BRAKE.

APPLICATION FILED MAR. 20, I918.

1 06,635. Patented June 10, 1919.

2 SHEETS-SHEET 1.

W. H. SAUVAGE.

RAILWAY HAND BRAKE.

APPLCATHW FILED MAG 20.1915.

1,306,835. PatvntwLlune .10, 1919.

.. 7 311 042 11 Tot WHSQaI y g UNITED STATES PATENT OFFICE.

WILLIAM H. SAUVAG-E, OF FLUSHIN G, N YORK, ASSIGNOR, BY DIRECT AND MESNEASSIGNMENTS, TO THE ATLANTIC HAND BRAKE CORPORATION, OF BUFFALO, NEW

YORK, A CORPORATION. OF NEW YORK.

RAILWAY HAND-BRAKE.

Specification of Letters Patent.

Application filed March 20, 1918. Serial No. 223,530.

To all whom it may concern:

Be it known that I. WILLIAM H. S'AUVAGE, a citizen of the United States,residing at Flushing, in the county. of Queens and State of New York,have invented certain new and usefullmprovements in Railway Hand Brakes,of which the following is a specification. I

This invention relates to hand brakes particularly applicable for use onfreight cars, street cars, and the like. 1

One of the objects of the present inven tion is to provide a simple andpractical hand brake of the above general character having relativelyfew parts which will be inexpensive to manufacture and install A furtherobject is to provide a hand brake of that type known to the trade asstafi'less brake, which will be of high power and high efiiciency. Afurther obiect is to provide a hand brake of the last above characterpermitting a quick take up of the slack in the brake rigging, as well asa quick release. A further object is to provide a hand brake of the lastmentioned character adapted to hold the brakes in applied positionwithout the use of pawls and ratchet heretofore deemed necessary.

' Other objects will be in part obvious from the annexed drawings and inpart indicated in connection therewith by the following analysis of thisinvention.

This invention accordingly consists in the features of construction.combination of parts and in the unique relations of the members and inthe relative proportioningv and disposition thereof. all as morecompletely outlined herein.

To enable others skilled in the art so fully 'to comprehend theunderlying features thereof that they may embody the same by thenumerous modifications in structure and relation contemplated by thisinvention, drawings depicting a preferred form have been annexed as apart of this disclosure. and in such drawings like characters ofreference denote corresponding parts throughout all the views, in whichFigure 1 is an end view of a part of a freight car showing theapplication. of the brake thereto Fig. 2 is a side elevation partly insection showing the brake mechanism:

3 is a transverse sectional view of the mechanism shownin Fig.2.

' tral part of. the car.

an operator may stand while applying the brakes. 'Attached to the endwall in any doslred manner 1s a rectangular casing 7 havmg an upwardlypro ecting operating shaft 8 carrying hand operating means such as a'wheel 10 ada ted to be actuated in applying the brakes. Extendingdownwardly from the casing 7 is preferably a block chain ll which passesthrough the platform 6 and is connected with suitable power transmittingmechanism such as pull rod 12 although a wire cable and drum couldobviously be used. To the lower'end of this pull rod is connected anordinary chain 13 passing through a sheave 14 thence rearwardly to thefoundation brake rigging beneaththe cen- The power is trans mitted fromthis brake rigging to the truck brake mechanism in any desired manner.

The interior of the casing contains certain mechanism'now about to bedescribed in do tall. so constructed, positioned and arranged that whenthe hand wheel 10 is rotated power will be transmitted through "themechanism above described to apply the brakes.

This mechanism is shown more clearly in Figs. 2 and 3, and the casing 7is provided Patented June 10, 1919. i

with a plurality of attaching lugs 15 wherebv the same may beconveniently secured to the car body. A removable cover 16 is secured tothecasing by means of bolts or screws engaging holes 17 in the cornersof the casing for permitting convenient access to the interior.Centrally disposed within thecasing is an operated shaft 19 carrying ablock pulley 18 and a worm gear 20 which for convenience, are integrallyformed, as

clearly shown in Fig. 3. This shaft may be rotated by means of a crankor hand wheel 21 on the front face of the casing when a quicktake up isdesired. The shaft8, Fig.

2. is provided with a worm 22 adapted to of the endless type but ispreferably connected in the manner shown in Fig. 2, that is, it passesupwardly over the block pulley 18 and downwardly on the other sidethrough an opening 27 and has a stirrup or enlarged ring 28 to preventdisconnection and also allow the brakeman to place his foot thereinwhereupon a downward pressure will instantly take up all the slack.

ward pull upon the block pulley and worm mechanism rather than an upwardpull, as

would be the case if the chain were inserted through the opening 27 andhung down at the opposite side.

7 This brake mechanism may be operated in substantially the followingmanner:

The block lever 24 is raised to throw the worm and gear out of mesh andthe hand wheel 21 rotated to take up the slack in the brake rigging ifthe ring 28 is not used As herein shown one turn of the hand wheel 21will take up approximately from twelve to fourteen inches of chain whichis above the usual amount of slack allowed in the brake rigging. This,however, is not absolutely necessary for even by rotating the hand brakewheel 10 twice about seven inches ofchain will be taken up under highpower or approximately at a ratio of one to forty. However, assumingthat the slack has been taken up by the quick take up means, the locklever 24 is then swung downwardly which carries the worm 22 intoengagement with the worm wheel and then by rotating the brake wheel 10,the brakes may be applied with high power and the parts will hold in thepositionto which they are turned without the necessity of operating anypawls or ratchets, as usually required. When a release of the brakes isdesired, the hand brake 10 may be rotated in the opposite direction orif a quick release is preferred a raising of the lock lever 24 willcause the worm 22 to move out of engagement with the worm pulley 20thereby allowing the brakes to release under the actier;1 of the brakesprings associated therewit V It is.thus seen that this inventionprovides a relatively sim le brake mechanism having few parts whic' arecheap to manufacture and install and not likely to get out of order, Themechanism permits a quick.

One object of this arrangement is to provide a down- 1,eoe,ess

take up and high power application, as well the spirit of my invention,and I therefore do not intend to limit myself to the specific form shownand described.

Having thus described my invention what I claim as new and desire tosecure by Let ters Patent is:

1. In a brake mechanism for railway cars, in combination, a casingadapted to be secured to the end wall of the car having a slot along oneside and a removable wall to permit access to the interior thereof, anoperating shaft pivoted at one end within the casing and projectingthrough the slot having a lateral movement therein, a worm on saidshaft, a worm gear with which said worm normally meshes, a drumconnected with said worm gear, a chain passing about said drum, quicktake up means connected with one end of said chain and brake mechanismconnected with the other, and means normally holding said worm and 'gearin mesh but permitting an unmeshing thereof whereby the brakes may bequickly released or the slack taken up by operation of said take upmeans.

2. In a brake mechanism of the character described, in combination, anoperating shaft and operated shaft, worm and gear connectionstherebetween, means for rotating the operating shaft, means fortransmitting the power from the operated shaft, means permltting instantunmeshingof the worm and gear whereby a quick release of the brakes maytake place and means connected with the operated shaft whereby it may bemanually operated to quickly take up the excess slack in the brakerigging.

3. In a brake mechanism of the character described, in combination, anoperating shaft having a worm, an operated shaft having a worm gear inmesh with the worm, a block pulley connected with the worm gear, and achain meshing with said block pulley having quick take up means coactingwith the block pulley and adapted to be connected with thebrake riggin4. In a brake mechanism of the character described, in combination, anoperating shaft having a pivotal support, a worm thereon, a gear in meshwith said worm, an operated shaft upon which said worm gear is mounted,a block pulley connected with theworm gear, a chain meshing with saidblock pulley having one end connected with the brake mechanism and itsopposite end provided with a quick take up mechanism, and means engagingthe operating shaft adapted to hold the worm and gear normally in meshbut permitting a quick unmeshing thereof whereby the brakes may bereleased or the slack quickly taken up.

5. In a brake mechanism of the character described, in combination, acasing having a slot in one wall thereof, an operatlng shaft projectingthrough said slot and having a pivoted bearing near its lower endwhereby it may oscillate back and forth in said slot, a worm on saidshaft, a worm gear normally in mesh therewith, means including a membercoacting with the casing and operating shaft adapted to hold the shaftagainst lateral movement, a block pulley operatively connected with theworm gear and a chain coacting with the block pulley adapted to beconnected with the brake rigging, and means whereby the block pulley maybe turned to quickly take up the slack when said worm and gear arethrown out of mesh.

6. In a brake mechanism of the character described, in combination, anoperating shaft and operated shaft, worm and gear connectionstherebetween, means for rotating the operating shaft, means fortransmitting the power from the operated shaft, includin a pulley, achain passing freely over sai pulley and a stirrup at the end of saidchain whereby a quick take up of the slack may be obtained, and meansassociated with the operated shaft whereby the same may be turnedindependently of the operating shaft.

7. In a brake mechanism of the character described, in combination, acasing having an operating shaft with hand turning means associatedtherewith, an operated shaft at right angles thereto, power multiplyinggearing connecting said shafts, a block pulley on said second shaft, achain coacting therewith and adapted to be connected with the brakemechanism at one end and having its other end free whereby the slack maybe quickly taken up by pulling on said free end, and means permittingthe meshing or unmeshing of the geared connections of said shafts atwill.

8. In a brake mechanism of the character described, in combination, acasing, a shaft trunnioned in said casing, hand turning mechanismconnected therewith outside of said casing, an operated shaft mounted inthe casing, worm and gear mechanism connecting said shafts, a pulley onsaid second shaft, power transmitting mechanism connecting said pulleywith the brake mechanism and means adapted to permit or prevent alateral movement of said operating shaft about its trunnioned hearingsto carry said gears into or out of mesh said power transmittingmechanism inclu' ing a block chain passing over said pulley andconnected with thebrake rigging whereby an equal downward pull isexerted on the parts of said mechanism within said casing when thebrakes are under tension.

In testimony whereof I affix my signature.

WILLIAM H. SAUVAGE.

